Road-scraper



2 Sheets-Sheet 1. J. FLEMING.

ROAD SGRAPER.

(No Model.)

Patented June 12,1883.

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(No Model.) 2 SheetsSheet 2.

J. FLEMING.

ROAD SCRAPER. N0. 279,368. Patented June 12,1883.

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UNITED PATENT OFFICE.

JQNATHAN rename, or MADISON, ALLEN counter, INDIANA.

RoAD-scR-APER.

forming part of Letters lPatent No. 279,368, dated June 12, I883.

Application filed April 6, 1883. (No model.)

To jall whom it may co a-a I son township, in the county of Allen andState of Indiana, have invented certainnew and useful Improvements inRoad-Scrapers, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to, that class known as Wheeled graders andsmoothers, and has for its object the grading and smoothing of roadsorirregular land, as will be hereinafter more particularly described. 1

In the accompanying drawings, making part of this specification, Figure1 represents a plan view. Fig. 2 represents a vertical longitudinalsection; and Figs. 3 and 4 detached portions, Fig. 3 being a section inline site, showing the position of the king-bolt with reference to thebolster, the axle, the reach or center piece of the hounds, and thescraper, while Fig. 4 shows one of the levers for raising and loweringthe scraper. Fig. 5 is a side view of the end of the pole.

In the figures, A represents an axle, which is mounted upon the twowheels B B.

G 0 represent the hounds of the machine, and D the center bar or reachbetween the two,- the three parts being firmly secured to the axle A,the hounds being braced firmly from the axle, both behind and before, bythe bracesl Z.

Immediately over the hounds is the bolster E. Upon this bolster, nearits ends, are secured two angular block's, E E, which are made thickerat their inner than at their outer ends. Pivoted to these blocks, neartheir outer ends, are two levers, F F, one to each block, in such mannerthat their ends may have a partially rotary motion.

Secured to each block is a ratchet-segment, m. Beneath the levers F, andbetween small cars connected to same, are pivoted the L- shaped leversL.

A rod, M, connnected to the short arm of the lever L, connects with abolt, N, which plays with a coiled wire spring around it through twokeepers on the under side of the lever F. The free end of the bolt isadapted to catch into the teeth of the ratchet-segment, and thus stationthe lever F at any desired said lever.

point. The outer ends ofthe levers F have segments a formed upon them,,and said segments have in their faces a curved groove.

. A chain, (1, passes through the lever F, near the segment a, and itsfree end is caught, when desired, in the slot of a plate, 0, secured toV This. chain passes aroimd a pulley, J on the end of the bolster, andthen has itslend secured to the scraper. a chain secured to each of thelevers F and to each end of the scraper, it is evident that the ends ofsaid scraper can be alternately raised or lowered, or made to work withboth ends at an equal elevation or depression.

The scraper proper is composed of three partsthe back board, P, which ismade of Wood, the bed-plate g, which is made of metal, and the knife R,which is also made of metal.

The bed-plate may be in one piece, but is pref- 7o erably in sections,which are firmly bolted to the back board, P. y The lower end of thebedplate is provided withtwo shoulders, one in front and the other atrear. The lower end of the back board rests upon the rear shoulder,

and the upper edge of the knife rests against the front shoulder, asseen. The bed-plate is slightly curved'forward at its lower end for thepurpose of forming a proper seat and rest for the knife, giving asuitable curve for carrying up the earth to the bed-plate.

G'represents the tongue of the machine,

which is connected to the forward end of the hounds by means of a brace,H. This brace has at its lower end a foot, K, which is perfo- 8 5 ratedwith holes .to allow of different adjust ments, as will be described. g

r S and T represent two metallic straps, which are connected one to thetop and the other to the bottom side of the rear end of the pole. 0'

These straps pass under a yoke, 0, which has its ends secured to theback board of the scraper. The main strap T passes back, and has tworectangular bends in it at its end,

space sufficient being left between the bends 5 to allow itto embracethe semicircle I. This strap is braced and securely connected to theback board by means of a brace, '21. l

I represents a semicircular brace, which is firmly secured at its endsto the back board of the scraper near its ends. This brace I is provi dewith a series of holes, and apiu, '(0, passes There being 6 Y representsthe king -bolt.

through the bent ends of the strap T, and also through the semicircle I,for the purpose of securing the two parts together. By removing the pin10 the bent end of strap T may be shifted upon the semicircle for givingdirection to the draft of the machine through the pole.

a represents a brace, which passes from near the bottom of the backboard to the strap T, near its rear end, being securely bolted to thestrap and suitably hinged to the back board, which enables the rear endof the strap to move on the semicircle I, .while at the same time thescraper is suitably braced all the while. The brace 10 is also hinged,as seen, to the back board of the scraper.

W hen the scraper is centrally located the king-bolt passes down throughthe bolster, the center piece of the hounds, the axle, and then throughthe yoke c, all as seen in Fig. 3; but the scraper is capable of beingchanged in position endwise of the axle, and held in that position bythe king-bolt, as will 110w be explained.

Two metallic plates, 2, (partially seen'in Fig. 1,) are secured to theaxle A, one on its upper and the other on its lower side, and in thisinstance a short distance to the right of the center of the axle. Theseplates are provided with suitable holes for receiving the kingbolt.

NVhenit is desired to change the position of the scraper the king-boltis removed and the bolt removed from the foot K. The bolster is thenshifted to the right until its hole for receiving the king-bolt is overthe holes in plates z. The king-bolt is then dropped in place, and thefoot K is again bolted in proper position on the tongue, while at thesame time the plate T may be suitably changed on the semicircle I.

9 represents a cutter secured to or forming a part of the knife at oneend. This cutter extends slightly upward and outward from the knife, andmay be made to cut a path for the wheel, while its obliquity draws inthe earth from beneath the wheel to the scraper.

\Vhen the scraper is intended to run directly under the axle or squareacross the machine, the king-bolt will pass down through the center ofthe axle; but when it is desired to have it move obliquely, or one endforward of the other, the king-bolt is shifted over to pass through theplates 0 represents a foot-piece for the driver of the machine, and isbolted upon the semicirele and in front of the drivers seat, as seen.

The end of the tongue is provided, as seen in Fig. 5, with a metallicrod, which serves as a keeper for the neck-yoke ring. This rod is boltedupon the top and to the bottom side of the pole, and a sufficient spaceis left between it and the end of the pole for the neck-yoke ring topass around the end and work with above or below it, as may be required.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The bolster E, capable of being detached and adjusted to differentpositions upon the frame of the machine, and carrying with it the meansfor connecting it to and operating the scrapers, consisting of thelevers F, chains a a, and pulleys J J the several portions beingconstructed and arranged substantially as set forth.

2. The semicircular brace I, connected to the rear of the scraper, incombination with the tongue having a rear adjustment at w and a forwardadjustment by means of the brace H, substantially as set forth, and forthe purpose specified. 8. The scraper composed of the back board, 1?,the bed-plate q, and the cutter R, braced from the rear. by means of thebraces u and u and-semicircular brace I, substantially as and for thepurpose set forth.

4.. The tongue G, provided at its rear end with the straps S and T, incombination with the scraper, the yoke t, the brace a, and thesemicircular brace 1', arranged in rear of the axle, substantially asand for the purpose set forth.

5. The combination of the scraper with the plates 2 on the axle, thetongue G, as constructed, and with its brace H and the bolster at oneend and bolted to the tongueplates near their rear end, substantially asand for the purpose specified.

In testimony whereof I aflix my signature in.

vpresence of two witnesses.

JONATHAN FLEMING.

Witnesses:

W. D. ALEXANDER, Cams. 1). Dxvrs.

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